$WMB is one of biggest losers #stocks today. read more:

Williams Companies, Inc. (The) (symbol: WMB) was one of the worst losers of
the trading day today (2016-07-01), losing -4.95%. The number of shares
that changed hands was 17,739,802, or about 2 times the average daily
volume in the stock.
The closing price was $20.56, amounting to a market cap of $15,430,000,000,
about -65.02% off the highest price in the last 12 months. The stock has
been trading at a range between $10.22 and $58.77.
WMB is in the Natural Gas Distribution industry, part of the Public
Utilities sector.